Terms of service

Last updated: 28 August 2026

These terms are the agreement between you and thirds.ai when you use the service. We keep them short and in plain words, because you should be able to understand what you agree to.

The service

thirds.ai turns the HTML and templates you send into PDF documents, through the website, the API, and MCP. The pricing page shows the current plans, credit packs, and prices.

Your account

You sign in with an email link, GitHub, or Google. Keep your API keys secret: work done with your keys counts as your work. Tell us at support@thirds.ai if you think a key has leaked, and revoke it in your account.

Credits

Renders spend credits from your plan or your credit packs. When a render fails because of a fault on our side, it does not spend your credits.

Your content

The documents you send and the PDFs we make from them are yours. You give us permission to process and store them only to provide the service. You must have the right to use the content you send.

Fair use

Do not use thirds.ai for content that is illegal or that harms others, do not send malware, and do not try to break the limits or the isolation of the service. We can suspend an account that breaks these rules.

Storage

We keep a finished PDF for 30 days and then delete it. thirds.ai is not an archive: keep your own copy of documents that matter to you.

What we promise

We work to keep the service fast and available, but we provide it without a warranty. Our total liability to you is limited to the amount you paid us in the twelve months before the claim. Nothing in these terms removes a right the law does not let us remove.

Ending the agreement

You can stop using thirds.ai and delete your account at any time. We can suspend or close accounts that break these terms.

Changes and law

When these terms change, the new version appears on this page with a new date at the top. These terms follow the law of England and Wales.